AM: rm trailing whitespace
AM: rm ph_cntrl_setup() noop
AM: xc_nl_calc_ph replaces nl_calc_ph from ph_cntrl module
AM: INPUT, dont accept PHXC_CNTRL namelist

It has no effect for long time already.
AM: dont call post_scf_input_bcast() noop
AM: dont compile unused ph_cntrl.o
AM: delete unused modules/ph_cntrl.f90